• Investment Casting

  • IQ-Enterprises (IQE) is a premium manufacturing firm, located in Indianapolis, Indiana, and in China. Established in 2004, IQE supplies high quality and low cost investment casting (lost wax casting) and lost foam casting. Castings are handled with great care to meet required dimensions, surface finish, etc. IQE also offers engineering services and secondary operations, such as: machining, assembly, plating, e-coating, etc.

    Communication, Quality, On-Time Delivery: In the US, we handle your project from beginning to end. We communicate design ideas, and convert all standards via bilingual Engineers to help work through all other challenges to make sure we exceed your quality, service and financial goals. Quality, on-time delivery and customer satisfaction is the goal of our service. IQE’s quality management team in China checks the product quality at each stage in the production process to make sure the product meets the specifications before shipping. Based on request, we deliver your product to your dock or may stock your product in North America. ISO9001-2000 certificated. 

  • Investment casting foundry main equipment List

    Die casting machines  Machining 
    3 – Electrical furnaces
    5 – Wax melting and stirring machine
    12 – Wax Injection machines
    2 – Dewaxing chamber
    2 – Mold heating chamber
    5 – abrasive belt machine
    2- sand blast machine
    1 – Spectrometer
    Engine lathes
    Numerical lathes
    Milling machines
    CNC machines

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    Mold heating chamber Spectrometer for chemical analysis
  • Commonly used investment casting alloys

  •   Stainless Steel  Carbon steel 
    (ASTM A27)
    Alloy steel
    properties SS 303 SS 304 SS 316 SS 316L 60-30 60-35 70-35 4130 4140 8620
    Ultimate Tensile Strength, MPa    
    (ksi)
    620 
    (89.9)
    505 
    (73.2)
    580 
    (84.1)
    515 
    (74.7)
    415 
    (60.2)
    450 
    (65.3)
    485 
    (70.3)
    560       
    (81.2)
    655 
    (95)
    530       
    (76.9)
    Tensile Yield Strength       
    (ksi)
    240 
    (34.8)
    215 
    (31.2)
    290 
    (42.1)
    205 
    (29.7)
    205 
    (29.7)
    240 
    (34.8)
    250 
    (36.2)
    460       
    (66.7)
    415       
    (60.2)
    385       
    (55.8)
    Elongation       
    (% in.2 in.)
    50% 70% 50% 60% 24% 24% 22% 21.5% 25.7% 31.0%
    Shear Strength  
    (ksi)
    77200    
    (11200)
    86000
    (12500)
    193000 
    (28000)
    193000 
    (28000)
          80000 
    (11600)
    80000 
    (11600)
    80000 
    (11600)
    Hardness, Brinell   123 79 149       217 197 149
    Thermal Conductivity, W/m-K       
    (BTU-in/hr-ft²-F)
    16.2 
    (112)
    16.2 
    (112)
    16.3 
    (113)
            42.7 
    (296)
    42.6       
    (296)
    46.6       
    (323)
    Density, g/cc       
    (lb/in³) 
    8.00 
    (0.289)
    8.00   
    (0.289)
    8.00 
    (0.289)
    8.00  
    (0.289)
          7.85 
    (0.284)
    7.85 
    (0.284)
    7.85 
    (0.284)
    Chemical Properties
    Carbon,C ≤0.15% ≤0.08% ≤0.08% 0.03% ≤0.25% ≤0.3% ≤0.35% 0.28-0.33% 0.38-0.43% 0.18-0.23%
    Chromium,Cr 18.00% 18.0-20.0% 16-18% 17.00%       0.8-1.0% 0.8-1.1% 0.4-0.6%
    Iron, Fe 69% 66.635-74% 61.8-72% 65.00%       97.03-98.22% 96.785-97.77% 96.895-98.02%
    Manganese, Mn ≤2.0% ≤2.0% ≤2.0% 2.00% ≤0.75% ≤0.7% ≤0.7% 0.4-0.6% 0.75-1.0% 0.7-0.9%
    Molybdenum,Mo ≤0.6%   2.0-3.0% 2.50%       0.15-0.25% 0.15-0.25% 0.15-0.25%
    Nickel, Ni 9.00% 8.0-10.5% 10.0-14.0% 12.00%           0.4-0.7%
    Phosphorus,P ≤0.2% ≤0.045% ≤0.045% 0.05% ≤0.05% ≤0.05% ≤0.05% 0.04% 0.04% 0.04%
    Silicon, Si ≤1.0% ≤1.0% ≤1.0% 1.00% ≤0.8% ≤0.8% ≤0.8% 0.15-0.3% 0.15-0.3% 0.15-0.35%
    Sulfur,S
  • Investment casting technical data and secondary operations

  • Investment casting tolerance 0.003-0.006 per ft
    (closer at extra cost)
    Part weight range 0.01 – 18 lbs
    Tooling construction All molds are constructed from Al Alloy. Tooling is produced in-house, outsourced tooling vendors.
    Die lifetime 100000
    Deburring belt sanding, grinding machines, brush deburring, filing, sand blast, tumbling, vibration deburring, etc.
    Investment casting surface roughness
    (RMS, µin)
    250-150
    Minimum draft required: 0.5-1.5 degree
    Wall thickness range 0.060″ – 2.5″
    Normal lead time: Tooling and sample:       2 weeks – 3 weeks.
    Secondary operations Heat treatment
    Machining
    X-ray
    Assembly
    Polished
    Sand blasting
    Tumbling
    Zinc plating
    Nickel plating
    E-coating
     
  • Engineering assistance

    Engineering: Based on request, IQE can provide the following services for our customers:

    – CAD model development from your sample;
    – Stress analysis, which helps in knowing whether the design is adequate and optimized,and what changes are needed, before the physical part is made;
    -Some Mechanical and Chemical Lab tests for your prototype part.

  • Impact simulation of a cone shaped plastic cushion

  • Main products

    Automotive parts, Railway spare parts, train components, Automatic pool covers stainless steel parts.